Your unfortunate friend Greta has a condition where her Ca2+-ATPase works too fast. She comes to you, an ace physiologist, to ask what exactly is going on inside her muscle cells. You tell her...
Your unfortunate friend Greta has a condition where her Ca2+-ATPase works too fast. She comes to you, an ace physiologist, to ask what exactly is going on inside her muscle cells. You tell her...
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Hello, May I get help with this physiology question? An explanation leading to the correct answer would be helpful!
Scenario: Your unfortunate friend Greta has a condition where her Ca2+-ATPase works too fast. She comes to you, an ace physiologist, to ask what exactly is going on inside her muscle cells.
You tell her...
Transcribed Image Text:**Question: What could be a potential reason for the issue described?**
- She doesn't have enough Ca²⁺ in her sarcoplasmic reticulum
- YES
- Her action potentials are too large
- Her sarcomeres cannot contract for as long
- Her sarcomeres contract for too long
**Explanation:**
This list seems to present possible explanations for a physiological issue related to muscle contraction. Here is a brief overview of each option:
1. **Calcium Ions (Ca²⁺) in the Sarcoplasmic Reticulum**: Calcium ions are crucial for muscle contraction. A deficiency in Ca²⁺ within the sarcoplasmic reticulum may impair the muscle's ability to contract efficiently.
2. **Affirmative ('YES')**: This may indicate confirmation of one of the listed statements, possibly the first option regarding Ca²⁺ deficiency.
3. **Large Action Potentials**: Excessively large action potentials might affect the neuromuscular signaling process, leading to issues with muscle contractions.
4. **Reduced Duration of Sarcomere Contraction**: If sarcomeres cannot contract for as long as necessary, it could result in weakened muscle contractions.
5. **Extended Duration of Sarcomere Contraction**: Prolonged sarcomere contractions might lead to muscle fatigue or cramping, indicating an abnormality in muscle contraction regulation.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON